James O'Neill's blog

Windows Platform, Virtualization and PowerShell with a little Photography for good measure.

Fun and games with VHD files in the new OSes

Fun and games with VHD files in the new OSes

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image One of the new features for both Windows Server 2008 R2 and the Windows 7 client is support for Virtual Hard Disk files built into the OS. You can create fixed or dynamic disks and “attach” the tools for Hyper-V call this “mounting” a VHD and early stuff on 7 seems to  have called it surfacing a VHD . You need to click the image on the left to see it full size but  Disk 3 has a different coloured disk icon, and it contains the full image backup of my Vista hard disk.

Disk part will do the job too. 

Create VDISK will setup a new VHD (Help Create Vdisk will tell you the parameters)

Select VDISK "<file name">” followed by “Attach” Vdisk  will bring a disk on-line.

Then you can partition it like any other disk, use it like any other disk and so on.

 

Now … during installation you can press [Shift][F10] to pop up a command prompt, and if the installation runs on the 6.1 build of Windows PE what do you think you might be able to do  ?

Comments
  • What are the requirements to boot a VHD? ie. does there need to be an existing physical partition to store boot files?

  • Jon, yes a VHD is a file so it has to go in a partition somewhere. The partition which the bios boots from needs to have a 6.1 boot loader with the right Boot configuration database.

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